Hydraulic engine and pump.



No. 896,327; PATENTED AUG. 1p, 1908.

E'. G.- ROBERTS.

`HYDRAULIC ENGINE AND PUMP.

APPLIOATION FILED DBG.2B,1907. f

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No. 896,827. PATEN'IED AUG. 18, 1908.

' E. C. ROBERTS-- l HYDRAULIC ENGINE AND PUMP.

d APPLICATION FI'LBD DEG. 28, 1907.

' 2sHEETs-sHm:T 2

ble of changing the course olf the Water from one end oi the cylinder tothe other, discharge openings at oiposite ends of the cylinder', valvescontrolling these-ine, pumps having cylinders in line with the iii-aincylinder, a piston in said'inain cylinder having opposite partcylindrical extensions overlying said discharge openings and the valvesthereof 'at 'the ends of the strokes, said piston having a plunger ateach side thereof Working in the pump cylinders, and means for reversingthe valves at the ends of the strokes of the pis-ton.

5. in a hydraulic engine and puinp, the combination of. a main cylinderprovided With a Witter inlet, intersecting passages establishingcommunication between said inlet and the ends of the cylinder, a valvelocated at the intersection of said passages and capahle of changingthe'eourse of the Writer lroin one end of the cylinder to the other,discharge openings at oppositeends oi" Ythe uylinder; valves Contro lingthe saine, pumps having cylinders in line with the mein cylinder, saidmain cylinder having zentral openings in the heads thereof, a piston insaid innin cylinder having opposite part rylindrioal extensionsoverlying said discharge openings andthe valves thereof at the ende` ol'its strokes, said piston having a plunger rod at each side engaging theo enings in the cylinder heads and havingl oose engagement with the pumpcylinders, water pac-kl combination of a main l cylinder with a Waterinlet and a pipe above t ie saine,

strokes. y

ing for s'aidjopenings, andmeans for reversing the valves at theends ofthe piston In a hydraulic engine. and pump, 'tl1e intersecting passagesesta lishing Communicetionbetween said inlet and the ends of the`cylinder, `a valve located at the intersection of said passages andcapable of changing the course of the water from one end of the cylinderto the other, discharge openings etv op osite ends of theeylinder,valves-oontro ling the same, pumps having cylinders in',A

line 'WitlLthe main cylinder, said main cylinrovidod der having centralopenings in Vthe heads` thereof, a piston in said main Acylinder havingopposite part eylindricalextensions overlying said discharge openingsand the valves thereof at the ends'of itsst-rokes, saidpiston.

having a plunger rodv at eaehside of less diameter than the pumpcylinder interiors,

'engaging the openings-in the *cylinder heads,

lss and working in the pump .eylinders, Water,-

packing for said openings having supply oonneetion with the pipe abovethe-'Water inlet,

and means for reversing ends of the pist-on strokes.

7 ln a hyrhaulicv engine and pump, the

eomhinsition el" a main cylinder .providedwith a water inlet,intersecting passages-esj tahhshing communication between said inlet.

and the ends of the cylinder, a pivoted valve located at theinterseetion of said passages, g

ol the cylinder, said openings aniA with the main eylii'ider, a pistonin' said main cylinder having opposite part eylin'- drieal. extensionsoverlying said discharge openings and the valves thereof at the ends o`'the piston strokes, said piston having a plunger rod at each` side ofless diameterthan-the interiors of the puinp cylinders' and workingtherein, and means for reversii'ig-the-fv valves ineflnding slide-blepins having bear-ufff ings in the cylinder h eadfsand engagin'gathepiston :it the endsof ths'trokes thereofai'idf 1 a recipreatory4 slidehaving foperative con-f' Ileetion with the crank arms ofthe valves andhaving inturned endscarrying set screinsj" engaging said pins.

In testimony whereof I in presence of two witnesses. l 1

- l: 'EDWARD ROBERTS..` i 'Witnessesi y f J. A. BLACKWELL,

J. L MULLiNs.A

alfixmysignature,

